在edittext中输入值后出现TextInputLayout错误

Question

TextInputLayout输入一个文本后如何隐藏错误EditText.可能吗？

我怎么能做到这一点,或者我在这里做错了什么.!!

码

    layoutEdtPhone =(TextInputLayout)rootView.findViewById(R.id.layoutEdtPhone);
    layoutEdtPhone.setErrorEnabled(true);
    layoutEdtPhone.setError(getString(R.string.ui_no_phone_toast));
    layoutEdtPassword =   (TextInputLayout)rootView.findViewById(R.id.layoutEdtPassword);
    layoutEdtPassword.setErrorEnabled(true);
    layoutEdtPassword.setError(getString(R.string.ui_no_password_toast));

    edtPhone=(EditText)rootView.findViewById(R.id.edtPhone);
    edtPassword=(EditText)rootView.findViewById(R.id.edtPassword);

XML

            <EditText
                android:id="@+id/edtPhone"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="100dp"
                android:background="@drawable/edt_background_selector"
                android:drawableLeft="@drawable/phone_icon"
                android:drawableStart="@drawable/phone_icon"
                android:hint="@string/phone"
                android:inputType="phone"
                android:padding="5dip"
                android:singleLine="true"
                android:textSize="14sp" />
        </android.support.design.widget.TextInputLayout>

        <android.support.design.widget.TextInputLayout
            android:id="@+id/layoutEdtPassword"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >

            <EditText
                android:id="@+id/edtPassword"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                android:background="@drawable/edt_background_selector"
                android:drawableLeft="@drawable/password_icon"
                android:drawableStart="@drawable/password_icon"
                android:hint="@string/password"
                android:inputType="textPassword"
                android:padding="5dip"
                android:singleLine="true"
                android:textSize="14sp" />
        </android.support.design.widget.TextInputLayout>

Answer 1

为了进一步说明Prithviraj给出的答案,TextInputLayout不进行验证.它只是一种显示错误或提示的机制.您负责设置/清除错误.这是你如何做到这一点.请注意,除了TextChangedListener之外,当用户跳转到第二个编辑文本而不在第一个字段中进行任何修改时,您可能还需要OnFocusChangeListener来设置错误.

protected void onCreate(Bundle savedInstanceState) {
        //.....

        edtPhone.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {
                validateEditText(s);
            }
        });

        edtPhone.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (!hasFocus) {
                    validateEditText(((EditText) v).getText());
                }
            }
        });
    }

    private void validateEditText(Editable s) {
        if (!TextUtils.isEmpty(s)) {
            layoutEdtPhone.setError(null);
        }
        else{
            layoutEdtPhone.setError(getString(R.string.ui_no_password_toast));
        }
    }
}

Answer 2

你可以设置 layoutEdtPhone.setErrorEnabled(false);

Answer 3

做

mTextInputLayout.setError(null);

清除错误消息.

一个好的做法可以是检查这样的错误的方法:

@Override
public void checkErrorBeforeAction() {

    boolean error = false;

    mTextInputLayout.setError(null);

    if (mEditText.getText().toString().length == 0)) {
        mTextInputLayout.setError("Field empty");
    }
    else if (mEditText.getText().toString().isValid) { // Other condition
        mTextInputLayout.setError("Field is invalid");
    }
    if (!error) {
        // Call action
    }
}

这样,它会在设置新错误消息之前刷新错误消息.

Answer 4

我使用ButterKnife的@TextChanged并为我工作,看看:

@Bind(R.id.layoutEdtPhone)
TextInputLayout tlayoutEdtPhone;
@Bind(R.id.edtPhone)
EditText edtPhone;

//start ButterKnife (I spent the URL with full description for initilize)

@OnTextChanged(R.id.edtPhone)
public void changedTextOnEditPhone() {
    tlayoutEdtPhone.setError("");
}

如果你想了解ButterKnife,我写了一篇更详细的文章,但它是用我的母语完成的,即pt_br.http://blog.alura.com.br/aumentando-a-produtividade-com-butter-knife-no-android/